SI9200339A - Washing machine or dishwasher with pressure giver as regulator of water level - Google Patents

Abstract

A washing machine incorporates a pressure transmitter as a water level regulator. The pressure transmitter is pneumatically connected to an air chamber acting as a transmitter housing. The pressure recorder nipples (4) are closed by the water level in the washing solution container. These nipples (4) have two ducts in the area of a clear cross section of less than 5 cm2. ADVANTAGE - The invention minimises the risk of damage as both of the two ducts are unlikely to get clogged simultaneously.

Description

(57) V izogib nevarnosti zamašitve vodnih ali zračnih poti regulatorja vodnega nivoja in iz tega izhajajočega javljanja napake iz vodnega nivoja je po izumu predvideno, da se nastavek sprejemnika tlaka na ohišju dajalnika zasnuje dvokanalno.(57) In order to avoid the risk of clogging of water or airways of the water level controller and the resulting water level error reporting, it is provided according to the invention that the pressure receiver connection on the encoder housing is designed in two channels.

Sl 9200339 A t7Sl 9200339 A t7

Bosch-Siemens Hausgerate GmbHBosch-Siemens Hausgerate GmbH

Pralni ali pomivalni stroj z dajalnikom tlaka kot regulatorjem nivoja vodeWashing machine or dishwasher with pressure transmitter as water level controller

Izum izhaja iz pralnega ali pomivalnega stroja z dajalnikom tlaka kot regulatorjem nivoja vode, ki je pnevmatsko povezan z vetmikom kot ohišjem dajalnika, katerega nastavek sprejemnika tlaka je zapirljiv z vodnim nivojem v lužnem rezervoarju.The invention is derived from a washing machine or dishwasher with a pressure transmitter as a water level controller, which is pneumatically connected to the vetmik as a housing of the encoder whose pressure receiver attachment is sealed with the water level in an alkaline reservoir.

Tovrstni pralni stroj je znan iz nemške objave spisa 37 43 395 in se praviloma opremi tako ali podobno. Nastavek sprejemnika tlaka je pri tem zasnovan kot dulec, katerega ustje leži tesno nad dnom lužnega rezervoarja, obrnjeno pa je navzdol. Tako lahko vodni nivo, ki počasi narašča s spodnje strani, zapre ustje, glede na zračni tlak, nastajajoč v ohišju dajalnika, naraste do višine, ki je označena z ravnotežjem med zračnim tlakom in vodnim stolpom, ki se je medtem zgradil v lužnem rezervoarju. Pri obratovanju se lahko občasno zgodi, da kepa pralnega praška ali manjši zablodil kosi perila zamašijo ustje nastavka sprejemnika tlaka in s tem v ohišju dajalnika preprečijo dvig tlaka, ki bi moral nastati zaradi vodnega stolpa v lužnem rezervoarju. Na tak način regulator vodnega nivoja, kije preko pnevmatske zveze povezan z ohišjem dajalnika, simulira mnogo nižji vodni nivo kot se je medtem ustalil v lužnem rezervoarju, tako da se po možnosti doseže prelivni nivo predno regulator vodnega nivoja izklopi dovod vode. To bi pomenilo, da se lahko razmestitveni prostor pralnega ali pomivalnega stroja nezaznavno preplavi.This type of washing machine is known from the German publication of file 37 43 395 and is generally furnished in one way or another. The nozzle of the pressure receiver is designed as a nozzle, the mouth of which lies tightly above the bottom of the alkaline tank and faces downwards. This allows the water level, which is slowly rising from the bottom, to close the mouth, with respect to the air pressure generated in the encoder housing, to rise to a height indicated by the equilibrium between the air pressure and the water tower, which has meanwhile been built up in an alkaline tank. During operation, it may occasionally be the case that washing powder clumps or smaller, erratic pieces of laundry clog the mouth of the pressure receiver attachment, thereby preventing the pressure enclosure inside the encoder housing from the water tower in the alkaline tank. In this way, the water level controller, which is pneumatically coupled to the encoder housing, simulates a much lower water level than has been settled in the alkaline tank, so that the overflow level is reached before the water level controller is switched off. This would mean that the placement of the washing machine or dishwasher may be undetectable.

Naloga izuma je izpolniti v VDE 0700 standardu določen predpis, po katerem ne more priti do pred tem opisanega Škodnega primera.It is an object of the invention to comply with a specific rule in VDE 0700 which cannot lead to the previously described Damage Case.

Izum reši poprej navedeno nalogo pri pralnem ali pomivalnem stroju uvodoma navedene vrste s tem, da je nastavek sprejemnika tlaka v območju svetlega prečnega preseka < 5 cm² zasnovan dvokanalno. Ker je sorazmerno neverjetno, da sta oba kanala nastavka sprejemnika tlaka zamašena v isti meri, se da zgoraj opisani škodni primer učinkovito preprečiti.The invention solves the aforementioned task in the washing or dishwasher of the type mentioned above by the fact that the pressure receiver nozzle in the area of light cross section <5 cm ^{2 is} designed in two channels. Since it is relatively improbable that both channels of the pressure receiver mount are clogged to the same extent, the damage described above can be effectively prevented.

Konstrukcijsko enostavna in s tem cenovno ugodna zasnova izuma nastane s tem, da je dvokanalni del nastavka sprejemnika tlaka‘predstavljen z ločilno steno v nastavku.The structural and simple design of the invention is thus advantageous by the fact that the two-channel portion of the pressure receiver attachment is represented by a dividing wall below.

Večjo varnost proti vsem morebitnim primerom zamašitvenih možnosti se pri nadaljnji izvedbi izuma dobi s tem, da nastavek sprejemnika tlaka sestoji iz dveh medsebojno ločenih, na ohišje dajalnika priključenih cevnih kosov. Pri tem naj se ustji cevnih kosov namesti tako medsebojno razmaknjeno, da se da malodane izključiti istočasno zamašitev obeh ustij.In the further embodiment of the invention, greater security against all possible cases of clogging options is obtained by the fact that the pressure receiver assembly consists of two tubular pieces connected to the encoder housing. The mouths of the tube pieces should be positioned so that they are spaced apart so that it is possible to exclude the clogging of the two mouths at the same time.

Nadaljnje možnosti zamašitve zračne poti med ohišjem dajalnika in regulatorjem vodnega nivoja nastanejo pri prednostni nadaljnji izvedbi, pri kateri sestoji pnevmatska povezava od ohišja dajalnika do dajalnika tlaka iz dveh zvijavih cevi ali cevi, ki sta z ločenim posamičnim nastavkom priključeni na ohišje dajalnika in dajalnik tlaka. S tem se je bati škodnih primerov zaradi zamašitve ene same zračne poti, saj lahko tudi kepe pralnega praška vdrejo skozi nastavek sprejemnika tlaka v ohišje dajalnika, pri najneugodnješih nihalnih gibanjih med postopkom centrifugiranja pa se zbijejo k nastavku za pnevmatsko povezavo z dajalnikom tlaka. Zasnova pnevmatske povezave po izumu prepreči ta škodni primer. Odstopajoče od tega pa lahko ta pnevmatska povezava sestoji tudi iz hlačaste zvijave cevi ali hlačaste cevi, ki je s svojim odcepnim vodom priključena na nastavek ohišja dajalnika, s svojim skupnim vodom pa na nastavek dajalnika tlaka.Further options for clogging the air path between the encoder housing and the water level controller arise from a preferred further embodiment, wherein a pneumatic connection from the encoder housing to the pressure transmitter consists of two twisted tubes or pipes connected to the encoder housing and the pressure transducer by a separate individual attachment. This eliminates the risk of damages due to the clogging of a single air path, as the laundry detergent lumps can also penetrate through the pressure receiver nozzle into the encoder housing, and in the most adverse oscillatory movements during the centrifugation process, they are compressed to continue for pneumatic connection with the pressure encoder. The design of a pneumatic link according to the invention prevents this damage case. By way of exception, this pneumatic connection may also consist of a trouser twist tube or a trouser tube, which is connected to the enclosure housing by means of its branch line and its common line to the pressure transducer assembly.

Pri drugi prednostni izvedbi izuma je vse odvisno od zmanjšanja nevarnosti zamašitve priključnega mesta pnevmatske povezave na dajalnik tlaka. To nalogo se razreši s tem, da pnevmatska povezava od ohišja dajalnika do dajalnika tlaka sestoji iz hlačaste zvijave cevi ali hlačaste cevi, katere dotočni odsek je priključen na nastavek ohišja dajalnika in katere odtočni odseki so priključeni na po enem ločenem nastavku dajalnika tlaka.In another preferred embodiment of the invention, it all depends on reducing the risk of clogging of the pneumatic connection connection point to the pressure transmitter. This task is solved by the fact that the pneumatic connection from the encoder housing to the pressure transducer consists of a tapered tube or a tubing whose inlet section is connected to the enclosure housing attachment and whose outlet sections are connected to one separate extension of the pressure encoder.

Izum je v nadaljevanju pobliže predstavljen s pomočjo na risbi prikazanega izvedbenega primera, kjer kaže sl. 1 merilni sistem vodnega nivoja, katerega ohišje dajalnika je priključeno v spodnjem območju lužnega rezervoarja, sl. 2 nastavek sprejemnika tlaka v navpičnem prerezu vzdolž prerezne črte II-H s sl. 1, sl. 3 nadaljnjo izvedbo nastavka sprejemnika tlaka z dvema medsebojno ločeno razporejenima kanaloma, prerezano vzdolž iste prerezne črte ΙΠ-ΙΠ s sl. 1, sl. 4 razporeditev dveh pnevmatskih povezav med ohišjem dajalnika in regulatorjem vodnega nivoja, in sl. 5 razporeditev hlačaste zvijave cevi kot pnevmatske povezave med ohišjem dajalnika in regulatorjem vodnega nivoja.The invention is further illustrated below with the help of the embodiment shown in FIG. 1 shows a water level measuring system whose encoder housing is connected in the lower area of the alkaline reservoir; FIG. 2 is a view of a pressure transducer in a vertical section along the section line II-H of FIG. 1, FIG. 3 is a further embodiment of a pressure receiver mount with two spaced apart channels, cut along the same cross-section ΙΠ-ΙΠ of FIG. 1, FIG. 4 is an arrangement of two pneumatic connections between the encoder housing and the water level controller; and FIG. 5 the arrangement of the trouser tube as a pneumatic connection between the encoder housing and the water level controller.

V navpični stranski steni 2 lužnega rezervoarja 1 na sl. 1 je predviden s tesnilko 3 oblečen preboj, ki tesnjeno vodi nastavek 4 sprejemnika tlaka ohišja 5 dajalnika skozi stransko steno 2. Ustje 6 nastavka 4 sprejemnika tlaka leži tesno nad dnom lužnega rezervoarja 1 in je obrnjeno navzdol.In the vertical side wall 2 of the alkaline reservoir 1 in FIG. 1 is provided with a gasket 3 clad puncture which seals the housing 4 of the pressure transmitter housing 5 of the encoder tightly through the side wall 2. The mouth 6 of the pressure receiver nozzle 4 lies closely above the bottom of the alkaline reservoir 1 and faces downwards.

V zgornjem območju ohišja 5 dajalnika je razporejen priključni nastavek 7, ki je preko pnevmatske povezave - tu zvijave cevi 8 - povezan z nastavkom 9 regulatorja 10 vodnega nivoja. Regulator 10 vodnega nivoja obsega tu detajlneje neprikazane membrane in stikala, da se različne tlake posamično signalizira z gibanjem stikal.In the upper area of the encoder housing 5, there is an attachment nozzle 7 which is connected to the water level of the regulator 10 by means of a pneumatic connection - here the tubing 8 -. The water level controller 10 comprises here in more detail the membranes and switches not shown here to individually signal different pressures by the movement of switches.

Nadalje je v nastavku 9 regulatorja 10 vodnega nivoja pritrjena šobna plošča 11, katere šobe izvajajo dušilni učinek na nenadne tlačne spremembe. S tem se izognemo nervozni stikalni igri znotraj mejnih tlačnih območij. Če vodni nivo v lužnem rezervoarju 1 naraste preko ustja 6, se znotraj ohišja 5 dajalnika, katero skupaj s pnevmatsko povezavo in regulatorjem 10 vodnega nivoja tvori zaprt sistem, ustvari tlak, ki se preko pnevmatske povezave prenese k regulatorju vodnega tlaka. Če ta tlak doseže pragovno vrednost, pri kateri reagira ena od neprikazanih membran, se to stanje signalizira z vključitvijo prirejenega stikala. Na sl. 1 je vodni nivo v lužnem rezervoarju narastel do višine 12. Pri tem se v tlačno-merilnem sistemu zaprt zrak stisne tako daleč, da pripadajoči vodni nivo v ohišju dajalnika lahko naraste do nivoja 13.Further, a nozzle plate 11 is attached to the water level regulator 10, the nozzles, whose nozzles exert a damping effect on sudden pressure changes. This avoids nervous switching within the pressure zones. If the water level in the alkaline reservoir 1 rises over the mouth 6, within the enclosure 5 of the encoder, which together with the pneumatic connection and the water level controller 10 forms a closed system, pressure is generated, which is transferred through the pneumatic connection to the water pressure regulator. If this pressure reaches a threshold value at which one of the membranes not shown reacts, this status is signaled by switching on a custom switch. In FIG. 1, the water level in the alkaline tank has increased to a height of 12. In this case, the closed air is compressed in the pressure measuring system so that the corresponding water level in the encoder housing can rise to level 13.

Če sedaj pri dovajanju vode in istočasnem dovajanju pralnega praška dospe npr. kepa pralnega praška v ustje 6, tedaj je lahko ustje tako tesno zaprto, da kljub dvigu vodne gladine v suhem rezervoarju 1 ni več mogoče nadaljnje naraščanje vodne gladine v ohišju 5 dajalnika. Kljub temu, da bi morala višina v lužnem rezervoarju že doseženega vodnega nivoja že zdavnaj doseči stikanje prirejenega stikala v regulatorju vodnega nivoja, to stikanje izostane. To lahko v izjemnem primeru vodi k temu, da vodna gladina v lužnem rezervoarju 1 že doseže tu neprikazan prelivni nivo, predno se sploh vključi katerokoli stikalo v regulatorju vodnega nivoja.If you now, for example, get into the water supply and at the same time as the washing powder, eg. of the detergent powder into the mouth 6, then the mouth may be so tightly closed that, despite the rise in water level in the dry tank 1, it is no longer possible to further increase the water level in the housing 5 of the encoder. Even though the height in the alkaline reservoir of the water level already reached should have long reached the contact of the adapted switch in the water level controller, this coupling is absent. This may, in exceptional cases, cause the water level in the alkaline reservoir 1 to reach the overflow level not shown here before any switch in the water level controller is activated.

V izogib tej pomanjkljivosti ima nastavek 4 sprejemnika tlaka bodisi po VDE 0700 predpisu po svoji celotni dolžini svetli prečni presek, ki je večji od 5 cm¹. To pa pogosto zaradi tesnih gradbenih prostorov ni mogoče. V izogib tako velikemu prečnemu preseku pa je mogoče tudi, da se nastavek sprejemnika tlaka po predloženem izumu v območju svetlega prečnega preseka zasnuje dvokanalno, z manj kot 5 cm¹. Tovrstna dvokanalna zasnova lahko npr. po sl. 2 sledi iz tega, da nastavek sprejemnika tlaka obsega ločilno steno 14, ki nastavek 4 predeli v dva kanalska dela.To avoid this drawback, the pressure receptacle 4 of the VDE 0700, according to the VDE 0700 regulation, has a full cross section greater than 5 cm ¹ in its entire length. This, however, is often not possible due to tight construction spaces. However, in order to avoid such a large cross-section, it is also possible for the pressure receiver assembly of the present invention to be designed two-channel with less than 5 cm ¹ in the area of the bright cross-section. Such a two-channel design can be e.g. according to FIG. 2 implies that the pressure receiver nozzle comprises a separation wall 14 which divides the nozzle 4 into two channel portions.

Odstopajoče od na sl. 2 izbrane škatlaste zasnove nastavka 4 sprejemnika tlaka, je lahko le-ta zasnovan cevasto z npr. po sl. 3 ovalnim prečnim presekom. Zato se da tesnilko 3 bolje oblikovati, njeno učinkovanje pa bolje kontrolirati. V takšnem primeru je dvokanalna zasnova nastavka 4 sprejemnika tlaka v obliki dveh ločenih kanalski delov, katera sesojita iz medsebojno ločeno na ohišje dajalnika priključenih cevnih kosov 15, primerna zasnova. Njeni ustji 16 ležita pri tem na daleč drug od drugega oddaljenih krajih, s čimer so manj podvržena nevarnosti, da bi se obe hkrati zamašili, kot pri dvokanalnem nastavku 4 sprejemnika tlaka, zasnovanega po sl. 2.In contrast to FIG. 2 selected box designs of pressure receptacle 4, which may be tubular with e.g. according to FIG. 3 with an oval cross-section. Therefore, the seal 3 can be better shaped and its performance better controlled. In such a case, the two-channel design of the pressure receiver attachment 4 in the form of two separate duct parts which suck from each other to the housing of the encoder of the connected tube pieces 15 is a suitable design. Its mouths 16 are thus located at a far distance from each other, thus less likely to become clogged at the same time than to the two-channel extension 4 of the pressure receiver designed according to FIG. 2.

Ker je tudi - kot je bilo opisano že uvodoma - pnevmatska povezava od ohišja 5 k regulatorju 10 vodnega nivoja lahko podvržena nevarnosti zamašitve, je zlasti pomembno, če sta po sl. 4 ali 5 ohišje 5 dajalnika in regulator 10 vodnega nivoja medsebojno povezana preko dvokanalne pnevmatske povezave. K temu sta lahko na ohišju dajalnika predvidena dva nastavka 17, na regulatorju 10 vodnega nivoja pa dva nastavka 19, ki so medsebojno povezani z ločenimi povezavami 18 zvijavih cevi. Različno od tega pa je lahko tudi ohišje dajalnika z dvema nastavkoma 17 preko hlačaste zvijave cevi ali hlačaste cevi povezano z enim samim nastavkom 9 (sl. 1) regulatorja 10 vodnega nivoja.Since, as described above, the pneumatic connection from the housing 5 to the water level controller 10 may also be liable to become clogged, it is particularly important if, according to FIG. The encoder 4 or 5 enclosure 5 and the water level controller 10 are interconnected via a dual-channel pneumatic connection. In addition, two nozzles 17 may be provided on the encoder housing and two nozzles 19 connected on the water level controller 10, which are interconnected by separate connections 18 of the twisted tubes. Alternatively, the encoder housing with two nozzles 17 may be connected to a single water level regulator 10 via a trouser-tube or trouser tube.

Obratna različica je predstavljena na sl. 5. pri kateri je ohišje 5 dajalnika preko hlačaste zvijave cevi 20 povezano z obema nastavkoma 19 regulatorja 10 vodnega nivoja. Izbira ene ali druge različice je odvisna od tega, kako velika je nevarnost, da se lahko vsakokratni priključni nastavek zapre zaradi nepravilnosti pri obratovanju. V primeru razporeditve dveh nastavkov 19 na regulatorju 10 vodnega nivoja lahko šobni vstavki 21 vsakokrat obsegajo eno šobno luknjo, namesto vsaj dveh, pri razporeditvi le enega nastavka 9 na regulatorju vodnega nivoja.The reverse version is presented in FIG. 5. in which the housing 5 of the encoder is connected via the trouser-tube 20 to the two connections 19 of the water level controller 10. The choice of one or the other version depends on the high risk that the connection nozzle may be closed due to malfunction. In the case of arrangement of two lugs 19 on the water level controller 10, the nozzle lugs 21 may each comprise one nozzle hole, instead of at least two, when positioning only one lug 9 on the water level regulator.

Enokanalno pnevmatsko povezavo 8 se praviloma izbere vedno takrat, kadar znaša notranji premer te povezave vsaj 5 mm. Za ožjo pnevmatsko povezavo je potrebna dvokanalna povezava, npr. kot na sl. 4. Če pa'je zgolj povezava v območju regulatorja vodnega nivoja ožja od 5 mm, v območju ohišja 5 dajalnika pa vsaj 5 mm, tedaj se lahko izbere povezavo s hlačasto zvijavo cevjo ali hlačasto cevjo po sl. 5. Ustrezno obratno velja za drugo alternativo povezave s hlačasto zvijavo cevjo, ki ni predstavljena. Pri razporeditvi z dvema nastavkoma 19 na regulatorju 10 vodnega nivoja je pomembno še, da ustji obeh nastavkov na ohišju regulatorja vodnega nivoja nista v vgradni legi razporejeni na najglobljem mestu tega ohišja. Kot ustja veljajo v primeru vstavljenih dušilnih šob ustja njihovih šobnih lukenj.As a rule, a single-channel pneumatic connection 8 is chosen whenever the inside diameter of this connection is at least 5 mm. A narrower pneumatic connection requires a two-channel connection, e.g. as in FIG. 4. If only the connection in the area of the water level regulator is narrower than 5 mm and in the area of the housing of the encoder 5 at least 5 mm, then the connection with the trouser twist tube or the trouser tube according to FIG. 5. Conversely, the other alternative is the connection to the panty tube, which is not represented. In the case of the arrangement with two nozzles 19 on the water level controller 10, it is also important that the mouths of the two nozzles on the water level regulator housing are not located in the recessed position at the deepest location of that housing. The nozzles of the nozzles of the nozzles of their nozzle holes are used as mouthpieces.

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PATENTNI ZAHTEVKIPATENT APPLICATIONS

Claims (2)

PATENTNI ZAHTEVKI Pralni ali pomivalni stroj z dajalnikom tlaka kot regulatorjem nivoja vode, ki je pnevmatsko povezan z vetmikom kot ohišjem dajalnika, katerega nastavek sprejemnika tlaka je zapirljiv z vodnim nivojem v lužnem rezervoarju, značilen po tem, da je nastavek (4) sprejemnika tlaka v območju svetlega prečnega preseka z < 5 cm2 zasnovan dvokanalno. Pralni ali pomivalni stroj po zahtevku 1, značilen po tem, da je dvokanalni del (sl. 2) nastavka (4) sprejemnika tlaka prikazan z ločilno steno (14) v nastavku. Pralni ali pomivalni stroj po zahtevku 1, značilen po tem, da nastavek (4) sprejemnika tlaka sestoji iz dveh, medsebojno ločeno na ohišje (5) dajalnika priključenih cevnih kosov (15) (sl. 3). Pralni ali pomivalni stroj po enem od predhodnih zahtevkov, značilen po tem, da pnevmatska povezava (7, 8, 9) od ohišja (5) dajalnika k tlačnemu regulatorju (10) sestoji iz dveh zvijavih cevi (18) ali cevi, ki sta na ohišje (5) dajalnika in tlačni dajalnik (10) priključena na po enem ločenem nastavku (17,19). Pralni ali pomivalni stroj po enem od zahtevkov 1 do 3, značilen po tem, da pnevmatska povezava (7 do 9) od ohišja (5) dajalnika k tlačnemu dajalniku (10) sestoji iz hlačaste zvijave cevi (20) ali hlačaste cevi, katere dotočni odsek na nastavku (7) ohišja (5) dajalnika in odtočni odsek sta priključena na po enem ločenem nastavku (19) tlačnega dajalnika (10). Bosch-Siemens Hausgerate GmbH Zanj: 22419-XI/92-Iv 2 3. II. 92 7 POVZETEK Pralni ali pomivalni stroj z dajalnikom tlaka kot regulatorjem nivoja vode. V izogib nevarnosti zamašitve vodnih ali zračnih poti regulatorja vodnega nivoja in iz tega izhajajočega javljanja napake iz vodnega nivoja je po izumu predvideno, da se nastavek sprejemnika tlaka na ohišju dajalnika zasnuje dvokanalno. (sl. 2) Fi g. 1Patent applications Washing machine or dishwasher with pressure transmitter as a water level regulator, pneumatically coupled to the vetmak as a housing of the encoder whose pressure receiver connection is sealed with the water level in the alkaline reservoir, characterized in that the pressure receiver attachment (4) is in light cross-sectional area with <5 cm2 designed two-channel. Washing machine or dishwasher according to claim 1, characterized in that the two-channel portion (Fig. 2) of the pressure receiver attachment (4) is shown with a separation wall (14) below. Washing machine or dishwasher according to claim 1, characterized in that the nozzle (4) of the pressure receiver consists of two separate tubes (15) connected to each other on the housing (5) of the encoder (Fig. 3). Washing machine or dishwasher according to one of the preceding claims, characterized in that the pneumatic connection (7, 8, 9) from the enclosure (5) of the encoder to the pressure regulator (10) consists of two twisted tubes (18) or tubes which encoder housing (5) and pressure transducer (10) connected to one separate extension (17,19). Washing machine or dishwasher according to one of Claims 1 to 3, characterized in that the pneumatic connection (7 to 9) from the enclosure (5) of the encoder to the pressure encoder (10) consists of a trouser twist tube (20) or a pant hose with inlet the enclosure section (7) of the encoder housing (5) and the outlet section are connected to one separate extension (19) of the pressure encoder (10). Bosch-Siemens Hausgerate GmbH It: 22419-XI / 92-Iv 2 3. II. 92 7 SUMMARY Washing machine or dishwasher with pressure transmitter as a water level controller. In order to avoid the risk of clogging of the water or air paths of the water level controller and the resulting error reporting from the water level, according to the invention, it is provided that the pressure receiver connection on the encoder housing is designed in two channels. (Fig. 2) Fi g. 1 1/31/3 ΤΖΡ 91 P 224ΤΖΡ 91 P 224 ΤΖΡ 91 Ρ 224ΤΖΡ 91 Ρ 224 2/3 α»2/3 α » ZC /ZC / f Νf Ν